Back in January 2014, I built a Raspberry Pi inside as SEGA Master System which featured Bluetooth support for the Dual Shock 3 controller.
Recently found my demonstration video so I thought I'd upload it.
Uses a Raspberry Pi Model 1 B overclocked to around 1GHz and all games are loaded from a SAMBA share via Ethernet.
Log is available here: http://blog.aergan.com/?p=13